Gabor texture feature extraction scheme has been proposed in [26] and Gabor wavelets provide
the best overall performance compared with other multiresolution texture features using the
Brodatz texture database. The experimental results on large aerial photographs also indicate that
Gabor wavelets give good pattern retrieval accuracy [26]. A two-dimensional Gabor function
xg,( y) is a Gaussian function modulated by a complex sinusoid [38]: